Polyester silk-imitation yarn and preparation method thereof
A technology imitating silk and polyester, applied in the field of modified polyester fiber, which can solve the problems of lack of active groups, fineness of ultrafine fiber, etc., and achieve the effect of improving degradation efficiency and dyeing performance
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Embodiment 1
[0068] A kind of preparation method of polyester imitation silk silk, concrete steps are as follows:
[0069] (1) prepare modified polyester;
[0070] (1.1) Preparation of heterogeneous solid acid-base SiO 2 -Al 2 o 3 ;
[0071] Formulated SiO 2 For a sodium silicate solution with a content of 12wt%, add polyethylene glycol 6000, a solution dispersant that is 4% by weight of the sodium silicate solution, stir until dissolved at 45°C, and add a sulfuric acid solution with a concentration of 12wt% dropwise at a uniform speed to The pH value of the solution is 10. After aging for 1.0 h, continue to add sulfuric acid solution drop by drop until the pH value is 8. After heating up to 95°C, age for 2 h; wash with water to remove SO 4 2- Suction filtration, washing with absolute ethanol several times, drying in a drying oven at 80°C, and grinding to obtain the product silica powder;
[0072] Weigh 1 part by weight of silica powder and add 55 parts by weight of water, stir and ...
Embodiment 2
[0092] A kind of preparation method of polyester imitation silk silk, concrete steps are as follows:
[0093] (1) prepare modified polyester;
[0094] (1.1) Preparation of 2-tert-butyl-1,6-hexanedicarboxylic acid: firstly mix tungstic acid and hydrogen peroxide, stir at room temperature for 10 minutes, then add 2-tert-butylcyclohexanol and firstly mix at 80°C React for 1 hour, then raise the temperature to 94°C and react for 2 hours. During the reaction, the reactants are always in a reflux state, and finally undergo cooling crystallization, washing and refining. The ratio is 1:35:120;
[0095] (1.2) Preparation of heterogeneous solid acid-base SiO 2 -MgO;
[0096] Formulated SiO 2 For a sodium silicate solution with a content of 10 wt%, add a solution dispersant polyethylene glycol 6000 which is 3% by weight of the sodium silicate solution, stir until dissolved at 40°C, and add a sulfuric acid solution with a concentration of 10 wt% dropwise at a uniform speed to The pH ...
Embodiment 3
[0107] A kind of preparation method of polyester imitation silk silk, concrete steps are as follows:
[0108] (1) prepare modified polyester;
[0109] (1.1) Preparation of 2-tert-butyl-1,6-hexanedicarboxylic acid: firstly mix tungstic acid and hydrogen peroxide, stir at room temperature for 12 minutes, then add 2-tert-butylcyclohexanol and firstly mix at 83°C React for 1.5 hours, then raise the temperature to 90°C and react for 2 hours. During the reaction, the reactants are always in a reflux state, and finally carry out cooling crystallization, washing and refining. The molar ratio is 1:33:120;
[0110] (1.2) Preparation of heterogeneous solid acid-base SiO 2 -Al 2 o 3 ;
[0111] Formulated SiO 2 For a sodium silicate solution with a content of 10 wt%, add a solution dispersant polyethylene glycol 6000 which is 3% by weight of the sodium silicate solution, stir until dissolved at 40°C, and add a sulfuric acid solution with a concentration of 10 wt% dropwise at a unifor...
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